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Journal : Journal of Educational Management and Learning

Enhancing Critical Thinking in Chemistry Education Through Differentiated LKPD Design Wahyuni, Sri; Hasan, Muhammad; Saminan, Saminan
Journal of Educational Management and Learning Vol. 3 No. 2 (2025): November 2025
Publisher : Heca Sentra Analitika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60084/jeml.v3i2.302

Abstract

This research aims to enhance students' Critical Thinking Skills in chemistry learning by using differentiated LKPD. Based on the initial observation, it was found that the CTS of students was still in the low category, as the learning media used had not taken into account the learning styles of students. This type of research is quasi-experimental with a Control Group Pre-Test-Post-Test Design. The sample in this study consisted of students from X.E-8, the experimental class, who were treated with differentiated LKPD, and the control class X.E-6, which was treated with undifferentiated LKPD. The research sample consisted of 76 students. The data collection employed a description test, consisting of five questions. Normality, homogeneity, and the One-Way ANOVA test were employed to analyze the data. The results of the feasibility test of differentiated LKPD, in terms of presentation, content, language, and writing, obtained an Aiken index of 0.87 and an Inter-Rater Agreement of 0.617, indicating that LKPD is valid and reliable. So, it is feasible to use as a chemistry learning medium. Based on the one-way ANOVA test analysis, it was found that there was a significant difference in the improvement of critical thinking skills between students taught using differentiated LKPD in the experimental class and those taught using undifferentiated LKPD in the control class.
Developing Students’ Creative and Entrepreneurial Skills via Project-based STEM Physics Sartika, Vera; Halim, Abdul; Zainuddin, Zainuddin; Saminan, Saminan; Syukri, Muhammad
Journal of Educational Management and Learning Vol. 3 No. 2 (2025): November 2025
Publisher : Heca Sentra Analitika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60084/jeml.v3i2.324

Abstract

Physics is a complex subject and requires a high level of understanding. Based on interviews at SMAN 4 Langsa, there has never been a test of creative thinking skills, there has been no learning that develops these skills, and students have a low entrepreneurial spirit. This study aims to improve physics learning through the PjBL-STEM (Project-Based Learning-Science, Technology, Engineering, and Mathematics) model, in improving students' creative thinking skills and entrepreneurial spirit. The research design used in this study was a one-group pretest-posttest design involving 89 grade X students. Data collection was conducted through interviews, questionnaires, and tests developed based on indicators of creative thinking skills. The data were analysed using the percentage formula, N-gain, Normality, and Paired Sample t-test. The instruments used were the Creative Thinking Skills Test and the Entrepreneurship Questionnaire. The results showed that the average N-gain of 0.71 was categorised as high. Based on the N-gain results, it can be concluded that there is an increase between before and after treatment. The results of the entrepreneurship questionnaire showed 45% before treatment and 82% after treatment. From the results of this study, it can be concluded that the PjBL-STEM model can optimise physics learning by improving students' creative thinking skills and entrepreneurial spirit.